/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 19:47:53,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 19:47:53,353 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 19:47:53,387 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 19:47:53,387 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 19:47:53,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 19:47:53,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 19:47:53,393 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 19:47:53,405 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 19:47:53,406 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 19:47:53,407 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 19:47:53,408 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 19:47:53,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 19:47:53,410 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 19:47:53,411 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 19:47:53,412 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 19:47:53,413 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 19:47:53,414 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 19:47:53,416 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 19:47:53,418 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 19:47:53,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 19:47:53,421 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 19:47:53,423 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 19:47:53,424 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 19:47:53,427 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 19:47:53,427 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 19:47:53,428 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 19:47:53,429 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 19:47:53,429 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 19:47:53,430 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 19:47:53,431 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 19:47:53,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 19:47:53,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 19:47:53,434 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 19:47:53,435 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 19:47:53,435 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 19:47:53,436 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 19:47:53,436 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 19:47:53,437 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 19:47:53,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 19:47:53,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 19:47:53,445 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 19:47:53,456 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 19:47:53,457 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 19:47:53,458 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 19:47:53,458 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 19:47:53,459 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 19:47:53,459 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 19:47:53,459 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 19:47:53,459 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 19:47:53,459 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 19:47:53,460 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 19:47:53,460 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 19:47:53,460 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 19:47:53,460 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 19:47:53,460 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 19:47:53,461 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 19:47:53,461 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 19:47:53,461 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 19:47:53,461 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 19:47:53,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:47:53,461 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 19:47:53,462 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 19:47:53,462 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 19:47:53,462 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 19:47:53,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 19:47:53,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 19:47:53,890 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 19:47:53,892 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 19:47:53,892 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 19:47:53,893 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product42.cil.c [2020-10-23 19:47:53,977 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0d541b22/3a269a55fdb84c6d8f387bd1851469e9/FLAGe9ef8ab03 [2020-10-23 19:47:54,793 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 19:47:54,794 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product42.cil.c [2020-10-23 19:47:54,811 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0d541b22/3a269a55fdb84c6d8f387bd1851469e9/FLAGe9ef8ab03 [2020-10-23 19:47:55,052 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0d541b22/3a269a55fdb84c6d8f387bd1851469e9 [2020-10-23 19:47:55,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 19:47:55,064 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 19:47:55,068 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 19:47:55,068 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 19:47:55,072 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 19:47:55,073 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:47:55" (1/1) ... [2020-10-23 19:47:55,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9129e05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:47:55, skipping insertion in model container [2020-10-23 19:47:55,077 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:47:55" (1/1) ... [2020-10-23 19:47:55,085 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 19:47:55,153 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 19:47:55,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:47:55,498 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 19:47:55,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:47:55,698 INFO L208 MainTranslator]: Completed translation [2020-10-23 19:47:55,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:47:55 WrapperNode [2020-10-23 19:47:55,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 19:47:55,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 19:47:55,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 19:47:55,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 19:47:55,721 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:47:55" (1/1) ... [2020-10-23 19:47:55,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:47:55" (1/1) ... [2020-10-23 19:47:55,763 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:47:55" (1/1) ... [2020-10-23 19:47:55,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:47:55" (1/1) ... [2020-10-23 19:47:55,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:47:55" (1/1) ... [2020-10-23 19:47:55,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:47:55" (1/1) ... [2020-10-23 19:47:55,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:47:55" (1/1) ... [2020-10-23 19:47:55,824 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 19:47:55,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 19:47:55,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 19:47:55,826 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 19:47:55,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:47:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:47:55,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 19:47:55,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 19:47:55,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 19:47:55,906 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 19:47:55,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 19:47:55,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 19:47:55,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 19:47:55,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 19:47:55,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 19:47:55,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 19:47:55,930 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 19:47:55,931 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 19:47:55,931 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 19:47:55,931 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 19:47:55,931 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 19:47:55,931 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 19:47:55,932 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 19:47:55,932 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 19:47:55,933 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 19:47:55,933 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 19:47:55,934 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 19:47:55,934 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-10-23 19:47:55,936 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 19:47:55,936 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 19:47:55,937 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 19:47:55,937 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 19:47:55,937 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 19:47:55,937 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 19:47:55,938 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 19:47:55,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 19:47:55,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-23 19:47:55,938 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 19:47:55,938 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 19:47:55,939 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 19:47:55,939 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 19:47:55,939 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 19:47:55,939 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 19:47:55,939 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 19:47:55,939 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 19:47:55,940 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 19:47:55,940 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 19:47:55,940 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 19:47:55,940 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 19:47:55,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 19:47:55,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 19:47:55,941 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 19:47:55,941 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 19:47:55,941 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 19:47:55,941 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 19:47:55,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 19:47:55,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 19:47:55,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 19:47:55,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 19:47:55,942 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 19:47:55,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 19:47:55,942 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 19:47:55,942 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 19:47:55,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 19:47:55,943 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 19:47:55,943 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 19:47:55,943 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 19:47:55,943 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 19:47:55,943 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 19:47:55,943 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 19:47:55,943 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 19:47:55,944 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 19:47:55,944 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 19:47:55,944 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 19:47:55,944 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 19:47:55,944 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 19:47:55,944 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 19:47:55,944 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 19:47:55,945 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 19:47:55,945 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 19:47:55,945 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 19:47:55,946 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 19:47:55,946 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-23 19:47:55,946 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 19:47:55,946 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 19:47:55,947 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 19:47:55,947 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-10-23 19:47:55,948 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 19:47:55,948 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 19:47:55,948 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 19:47:55,948 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 19:47:55,948 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 19:47:55,949 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 19:47:55,950 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 19:47:55,950 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 19:47:55,950 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 19:47:55,950 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 19:47:55,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 19:47:55,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 19:47:55,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 19:47:57,728 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 19:47:57,729 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 19:47:57,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:47:57 BoogieIcfgContainer [2020-10-23 19:47:57,734 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 19:47:57,737 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 19:47:57,737 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 19:47:57,742 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 19:47:57,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:47:55" (1/3) ... [2020-10-23 19:47:57,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6efe6aad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:47:57, skipping insertion in model container [2020-10-23 19:47:57,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:47:55" (2/3) ... [2020-10-23 19:47:57,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6efe6aad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:47:57, skipping insertion in model container [2020-10-23 19:47:57,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:47:57" (3/3) ... [2020-10-23 19:47:57,746 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product42.cil.c [2020-10-23 19:47:57,758 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 19:47:57,765 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 19:47:57,779 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 19:47:57,802 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 19:47:57,803 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 19:47:57,803 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 19:47:57,803 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 19:47:57,803 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 19:47:57,803 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 19:47:57,803 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 19:47:57,804 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 19:47:57,825 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states. [2020-10-23 19:47:57,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 19:47:57,845 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:47:57,846 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:47:57,846 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:47:57,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:47:57,853 INFO L82 PathProgramCache]: Analyzing trace with hash 710347960, now seen corresponding path program 1 times [2020-10-23 19:47:57,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:47:57,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1678927726] [2020-10-23 19:47:57,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:47:57,946 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:47:58,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:58,954 WARN L193 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:47:58,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:47:58,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:59,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:47:59,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:59,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:47:59,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:59,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:47:59,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:59,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:47:59,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:59,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 19:47:59,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:59,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 19:47:59,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:59,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:47:59,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1678927726] [2020-10-23 19:47:59,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:47:59,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 19:47:59,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741679462] [2020-10-23 19:47:59,159 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 19:47:59,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:47:59,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 19:47:59,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:47:59,176 INFO L87 Difference]: Start difference. First operand 308 states. Second operand 3 states. [2020-10-23 19:48:00,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:48:00,798 INFO L93 Difference]: Finished difference Result 474 states and 562 transitions. [2020-10-23 19:48:00,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 19:48:00,800 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 19:48:00,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:48:00,824 INFO L225 Difference]: With dead ends: 474 [2020-10-23 19:48:00,825 INFO L226 Difference]: Without dead ends: 296 [2020-10-23 19:48:00,830 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:48:00,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-10-23 19:48:00,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 254. [2020-10-23 19:48:00,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-10-23 19:48:00,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 274 transitions. [2020-10-23 19:48:00,977 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 274 transitions. Word has length 148 [2020-10-23 19:48:00,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:48:00,978 INFO L481 AbstractCegarLoop]: Abstraction has 254 states and 274 transitions. [2020-10-23 19:48:00,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 19:48:00,978 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 274 transitions. [2020-10-23 19:48:00,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 19:48:00,982 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:48:00,982 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:48:00,983 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 19:48:00,983 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:48:00,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:48:00,984 INFO L82 PathProgramCache]: Analyzing trace with hash -249559115, now seen corresponding path program 1 times [2020-10-23 19:48:00,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:48:00,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1349786613] [2020-10-23 19:48:00,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:48:00,988 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:48:01,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:01,468 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:48:01,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:48:01,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:01,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:48:01,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:01,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:48:01,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:01,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:48:01,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:01,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:48:01,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:01,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 19:48:01,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:01,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:48:01,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:01,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:48:01,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1349786613] [2020-10-23 19:48:01,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:48:01,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 19:48:01,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932015791] [2020-10-23 19:48:01,565 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 19:48:01,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:48:01,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 19:48:01,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:48:01,567 INFO L87 Difference]: Start difference. First operand 254 states and 274 transitions. Second operand 4 states. [2020-10-23 19:48:02,404 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:48:03,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:48:03,540 INFO L93 Difference]: Finished difference Result 384 states and 429 transitions. [2020-10-23 19:48:03,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 19:48:03,541 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 19:48:03,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:48:03,546 INFO L225 Difference]: With dead ends: 384 [2020-10-23 19:48:03,546 INFO L226 Difference]: Without dead ends: 279 [2020-10-23 19:48:03,548 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 19:48:03,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-10-23 19:48:03,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 244. [2020-10-23 19:48:03,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-10-23 19:48:03,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 261 transitions. [2020-10-23 19:48:03,653 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 261 transitions. Word has length 149 [2020-10-23 19:48:03,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:48:03,654 INFO L481 AbstractCegarLoop]: Abstraction has 244 states and 261 transitions. [2020-10-23 19:48:03,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 19:48:03,654 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 261 transitions. [2020-10-23 19:48:03,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-23 19:48:03,656 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:48:03,656 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:48:03,657 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 19:48:03,657 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:48:03,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:48:03,658 INFO L82 PathProgramCache]: Analyzing trace with hash 618696689, now seen corresponding path program 1 times [2020-10-23 19:48:03,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:48:03,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1095941363] [2020-10-23 19:48:03,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:48:03,662 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:48:03,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:04,102 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:48:04,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:48:04,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:04,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:48:04,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:04,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:48:04,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:04,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:48:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:04,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:48:04,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:04,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 19:48:04,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:04,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 19:48:04,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:04,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 19:48:04,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:04,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:48:04,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1095941363] [2020-10-23 19:48:04,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:48:04,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:48:04,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646282049] [2020-10-23 19:48:04,351 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:48:04,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:48:04,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:48:04,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:48:04,353 INFO L87 Difference]: Start difference. First operand 244 states and 261 transitions. Second operand 10 states. [2020-10-23 19:48:05,060 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:48:05,520 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:48:05,919 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:48:06,297 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:48:06,716 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:48:07,093 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:48:08,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:48:08,899 INFO L93 Difference]: Finished difference Result 430 states and 491 transitions. [2020-10-23 19:48:08,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 19:48:08,901 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 162 [2020-10-23 19:48:08,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:48:08,908 INFO L225 Difference]: With dead ends: 430 [2020-10-23 19:48:08,908 INFO L226 Difference]: Without dead ends: 301 [2020-10-23 19:48:08,912 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-10-23 19:48:08,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-10-23 19:48:09,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 244. [2020-10-23 19:48:09,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-10-23 19:48:09,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 260 transitions. [2020-10-23 19:48:09,005 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 260 transitions. Word has length 162 [2020-10-23 19:48:09,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:48:09,006 INFO L481 AbstractCegarLoop]: Abstraction has 244 states and 260 transitions. [2020-10-23 19:48:09,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:48:09,006 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 260 transitions. [2020-10-23 19:48:09,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-23 19:48:09,008 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:48:09,009 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:48:09,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 19:48:09,009 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:48:09,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:48:09,010 INFO L82 PathProgramCache]: Analyzing trace with hash -678949150, now seen corresponding path program 1 times [2020-10-23 19:48:09,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:48:09,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1158108516] [2020-10-23 19:48:09,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:48:09,013 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:48:09,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:09,445 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:48:09,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:48:09,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:09,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:48:09,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:09,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:48:09,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:09,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:48:09,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:09,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:48:09,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:09,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 19:48:09,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:09,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:48:09,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:09,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:48:09,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:09,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 19:48:09,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:09,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-10-23 19:48:09,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:09,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:48:09,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1158108516] [2020-10-23 19:48:09,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:48:09,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 19:48:09,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488412985] [2020-10-23 19:48:09,644 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 19:48:09,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:48:09,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 19:48:09,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-23 19:48:09,646 INFO L87 Difference]: Start difference. First operand 244 states and 260 transitions. Second operand 7 states. [2020-10-23 19:48:10,277 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:48:12,129 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:48:13,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:48:13,111 INFO L93 Difference]: Finished difference Result 603 states and 710 transitions. [2020-10-23 19:48:13,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-23 19:48:13,111 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 170 [2020-10-23 19:48:13,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:48:13,118 INFO L225 Difference]: With dead ends: 603 [2020-10-23 19:48:13,119 INFO L226 Difference]: Without dead ends: 474 [2020-10-23 19:48:13,120 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-23 19:48:13,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2020-10-23 19:48:13,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 345. [2020-10-23 19:48:13,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-10-23 19:48:13,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 371 transitions. [2020-10-23 19:48:13,262 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 371 transitions. Word has length 170 [2020-10-23 19:48:13,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:48:13,263 INFO L481 AbstractCegarLoop]: Abstraction has 345 states and 371 transitions. [2020-10-23 19:48:13,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 19:48:13,263 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 371 transitions. [2020-10-23 19:48:13,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-10-23 19:48:13,266 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:48:13,266 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:48:13,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 19:48:13,267 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:48:13,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:48:13,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1412713267, now seen corresponding path program 1 times [2020-10-23 19:48:13,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:48:13,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [969302348] [2020-10-23 19:48:13,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:48:13,271 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:48:13,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:13,660 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:48:13,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:48:13,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:13,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:48:13,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:13,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:48:13,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:13,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:48:13,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:13,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:48:13,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:13,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 19:48:13,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:13,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:48:13,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:13,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:48:13,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:13,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:48:13,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:13,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:48:13,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:13,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-23 19:48:13,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:13,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-10-23 19:48:13,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:13,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:48:13,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [969302348] [2020-10-23 19:48:13,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:48:13,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:48:13,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725731414] [2020-10-23 19:48:13,911 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:48:13,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:48:13,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:48:13,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:48:13,912 INFO L87 Difference]: Start difference. First operand 345 states and 371 transitions. Second operand 10 states. [2020-10-23 19:48:14,585 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:48:15,809 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:48:16,198 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:48:16,572 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:48:16,932 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:48:17,350 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:48:17,715 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:48:20,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:48:20,136 INFO L93 Difference]: Finished difference Result 984 states and 1198 transitions. [2020-10-23 19:48:20,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-23 19:48:20,144 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2020-10-23 19:48:20,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:48:20,150 INFO L225 Difference]: With dead ends: 984 [2020-10-23 19:48:20,151 INFO L226 Difference]: Without dead ends: 754 [2020-10-23 19:48:20,152 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-23 19:48:20,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2020-10-23 19:48:20,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 541. [2020-10-23 19:48:20,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 541 states. [2020-10-23 19:48:20,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 594 transitions. [2020-10-23 19:48:20,429 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 594 transitions. Word has length 194 [2020-10-23 19:48:20,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:48:20,429 INFO L481 AbstractCegarLoop]: Abstraction has 541 states and 594 transitions. [2020-10-23 19:48:20,429 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:48:20,429 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 594 transitions. [2020-10-23 19:48:20,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-10-23 19:48:20,432 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:48:20,433 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:48:20,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 19:48:20,433 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:48:20,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:48:20,434 INFO L82 PathProgramCache]: Analyzing trace with hash -1621062038, now seen corresponding path program 1 times [2020-10-23 19:48:20,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:48:20,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [175968808] [2020-10-23 19:48:20,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:48:20,437 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:48:20,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:20,818 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:48:20,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:48:20,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:20,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:48:20,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:20,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:48:20,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:20,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:48:20,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:20,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:48:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:20,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 19:48:20,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:20,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:48:20,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:20,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:48:20,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:20,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:48:20,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:20,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:48:20,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:20,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-23 19:48:20,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:20,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-10-23 19:48:20,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:21,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:48:21,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [175968808] [2020-10-23 19:48:21,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:48:21,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:48:21,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208314355] [2020-10-23 19:48:21,028 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:48:21,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:48:21,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:48:21,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:48:21,029 INFO L87 Difference]: Start difference. First operand 541 states and 594 transitions. Second operand 10 states. [2020-10-23 19:48:21,673 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:48:23,280 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:48:23,688 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:48:24,121 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:48:24,477 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:48:25,219 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:48:25,586 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:48:25,936 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:48:26,388 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:48:27,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:48:27,839 INFO L93 Difference]: Finished difference Result 1715 states and 2101 transitions. [2020-10-23 19:48:27,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-23 19:48:27,842 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2020-10-23 19:48:27,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:48:27,851 INFO L225 Difference]: With dead ends: 1715 [2020-10-23 19:48:27,852 INFO L226 Difference]: Without dead ends: 1289 [2020-10-23 19:48:27,854 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-23 19:48:27,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2020-10-23 19:48:28,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 905. [2020-10-23 19:48:28,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 905 states. [2020-10-23 19:48:28,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1002 transitions. [2020-10-23 19:48:28,309 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1002 transitions. Word has length 194 [2020-10-23 19:48:28,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:48:28,310 INFO L481 AbstractCegarLoop]: Abstraction has 905 states and 1002 transitions. [2020-10-23 19:48:28,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:48:28,310 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1002 transitions. [2020-10-23 19:48:28,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-10-23 19:48:28,314 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:48:28,314 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:48:28,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 19:48:28,314 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:48:28,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:48:28,315 INFO L82 PathProgramCache]: Analyzing trace with hash -946737515, now seen corresponding path program 1 times [2020-10-23 19:48:28,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:48:28,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2040510734] [2020-10-23 19:48:28,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:48:28,319 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:48:28,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:28,708 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:48:28,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:48:28,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:28,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:48:28,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:28,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:48:28,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:28,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:48:28,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:28,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:48:28,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:28,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 19:48:28,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:28,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 19:48:28,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:28,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-23 19:48:28,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:28,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:48:28,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:28,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:48:28,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:28,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:48:28,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:28,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-23 19:48:28,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:28,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-10-23 19:48:28,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:28,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:48:28,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2040510734] [2020-10-23 19:48:28,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:48:28,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 19:48:28,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658723323] [2020-10-23 19:48:28,917 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 19:48:28,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:48:28,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 19:48:28,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-23 19:48:28,919 INFO L87 Difference]: Start difference. First operand 905 states and 1002 transitions. Second operand 11 states. [2020-10-23 19:48:29,589 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:48:31,534 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:48:31,941 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:48:32,393 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:48:34,194 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:48:34,603 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:48:34,974 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:48:35,360 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:48:35,722 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:48:36,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:48:36,381 INFO L93 Difference]: Finished difference Result 1535 states and 1918 transitions. [2020-10-23 19:48:36,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-23 19:48:36,382 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 199 [2020-10-23 19:48:36,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:48:36,392 INFO L225 Difference]: With dead ends: 1535 [2020-10-23 19:48:36,393 INFO L226 Difference]: Without dead ends: 1531 [2020-10-23 19:48:36,394 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=261, Invalid=669, Unknown=0, NotChecked=0, Total=930 [2020-10-23 19:48:36,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1531 states. [2020-10-23 19:48:36,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1531 to 905. [2020-10-23 19:48:36,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 905 states. [2020-10-23 19:48:36,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1000 transitions. [2020-10-23 19:48:36,731 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1000 transitions. Word has length 199 [2020-10-23 19:48:36,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:48:36,732 INFO L481 AbstractCegarLoop]: Abstraction has 905 states and 1000 transitions. [2020-10-23 19:48:36,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 19:48:36,732 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1000 transitions. [2020-10-23 19:48:36,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-10-23 19:48:36,736 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:48:36,737 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:48:36,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-23 19:48:36,737 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:48:36,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:48:36,738 INFO L82 PathProgramCache]: Analyzing trace with hash -159330690, now seen corresponding path program 1 times [2020-10-23 19:48:36,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:48:36,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [600101524] [2020-10-23 19:48:36,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:48:36,741 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:48:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:37,111 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:48:37,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:48:37,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:37,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:48:37,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:37,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:48:37,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:37,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:48:37,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:37,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:48:37,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:37,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 19:48:37,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:37,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 19:48:37,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:37,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-23 19:48:37,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:37,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:48:37,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:37,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:48:37,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:37,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:48:37,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:37,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:48:37,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:37,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:48:37,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:37,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 19:48:37,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:37,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-23 19:48:37,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:37,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-23 19:48:37,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:37,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:48:37,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [600101524] [2020-10-23 19:48:37,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:48:37,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 19:48:37,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793499634] [2020-10-23 19:48:37,335 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 19:48:37,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:48:37,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 19:48:37,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-23 19:48:37,336 INFO L87 Difference]: Start difference. First operand 905 states and 1000 transitions. Second operand 11 states. [2020-10-23 19:48:38,810 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:48:39,186 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:48:39,611 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 19:48:39,979 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:48:40,357 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:48:40,707 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:48:42,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:48:42,573 INFO L93 Difference]: Finished difference Result 2351 states and 2911 transitions. [2020-10-23 19:48:42,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-23 19:48:42,573 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 222 [2020-10-23 19:48:42,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:48:42,585 INFO L225 Difference]: With dead ends: 2351 [2020-10-23 19:48:42,585 INFO L226 Difference]: Without dead ends: 1561 [2020-10-23 19:48:42,588 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-10-23 19:48:42,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1561 states. [2020-10-23 19:48:42,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1561 to 937. [2020-10-23 19:48:42,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 937 states. [2020-10-23 19:48:42,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1032 transitions. [2020-10-23 19:48:42,946 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1032 transitions. Word has length 222 [2020-10-23 19:48:42,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:48:42,947 INFO L481 AbstractCegarLoop]: Abstraction has 937 states and 1032 transitions. [2020-10-23 19:48:42,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 19:48:42,947 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1032 transitions. [2020-10-23 19:48:42,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-10-23 19:48:42,951 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:48:42,951 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:48:42,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-23 19:48:42,952 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:48:42,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:48:42,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1280468702, now seen corresponding path program 1 times [2020-10-23 19:48:42,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:48:42,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1158413511] [2020-10-23 19:48:42,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:48:42,956 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:48:42,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:43,387 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:48:43,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:48:43,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:43,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:48:43,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:43,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:48:43,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:43,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:48:43,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:43,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:48:43,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:43,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 19:48:43,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:43,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 19:48:43,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:43,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-23 19:48:43,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:43,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:48:43,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:43,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:48:43,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:43,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:48:43,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:43,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:48:43,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:43,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:48:43,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:43,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 19:48:43,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:43,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-23 19:48:43,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:43,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-23 19:48:43,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:43,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:48:43,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1158413511] [2020-10-23 19:48:43,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:48:43,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 19:48:43,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532110069] [2020-10-23 19:48:43,681 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 19:48:43,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:48:43,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 19:48:43,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-23 19:48:43,682 INFO L87 Difference]: Start difference. First operand 937 states and 1032 transitions. Second operand 14 states. [2020-10-23 19:48:44,439 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:48:44,818 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:48:45,174 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:48:45,549 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:48:45,896 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:48:46,934 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:48:47,288 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:48:47,657 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:48:48,052 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:48:48,408 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:48:50,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:48:50,631 INFO L93 Difference]: Finished difference Result 1977 states and 2382 transitions. [2020-10-23 19:48:50,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-23 19:48:50,632 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 222 [2020-10-23 19:48:50,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:48:50,639 INFO L225 Difference]: With dead ends: 1977 [2020-10-23 19:48:50,640 INFO L226 Difference]: Without dead ends: 1155 [2020-10-23 19:48:50,643 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2020-10-23 19:48:50,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2020-10-23 19:48:50,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 741. [2020-10-23 19:48:50,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 741 states. [2020-10-23 19:48:50,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 798 transitions. [2020-10-23 19:48:50,989 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 798 transitions. Word has length 222 [2020-10-23 19:48:50,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:48:50,990 INFO L481 AbstractCegarLoop]: Abstraction has 741 states and 798 transitions. [2020-10-23 19:48:50,990 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 19:48:50,990 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 798 transitions. [2020-10-23 19:48:50,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-10-23 19:48:50,999 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:48:50,999 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:48:50,999 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-23 19:48:50,999 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:48:51,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:48:51,000 INFO L82 PathProgramCache]: Analyzing trace with hash -2008380868, now seen corresponding path program 1 times [2020-10-23 19:48:51,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:48:51,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1885518993] [2020-10-23 19:48:51,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:48:51,006 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:48:51,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:51,390 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:48:51,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:48:51,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:51,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:48:51,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:51,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:48:51,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:51,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:48:51,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:51,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:48:51,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:51,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-23 19:48:51,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:51,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 19:48:51,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:51,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 19:48:51,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:51,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:48:51,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:51,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:48:51,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:51,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:48:51,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:51,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:48:51,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:51,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:48:51,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:51,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:48:51,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:51,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 19:48:51,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:51,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-23 19:48:51,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:51,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-10-23 19:48:51,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:48:51,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:48:51,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1885518993] [2020-10-23 19:48:51,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:48:51,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-10-23 19:48:51,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801275694] [2020-10-23 19:48:51,893 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-23 19:48:51,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:48:51,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-23 19:48:51,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2020-10-23 19:48:51,894 INFO L87 Difference]: Start difference. First operand 741 states and 798 transitions. Second operand 21 states. [2020-10-23 19:48:52,634 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:48:53,176 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:48:53,570 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:48:53,962 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:48:54,350 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:48:54,718 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:48:55,810 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:48:57,608 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:48:58,029 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:48:58,539 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:48:58,955 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:48:59,366 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:48:59,781 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:49:00,171 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:49:00,590 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:49:01,038 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:49:01,550 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:49:02,005 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:49:02,440 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:49:03,276 WARN L193 SmtUtils]: Spent 664.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 206 [2020-10-23 19:49:04,215 WARN L193 SmtUtils]: Spent 699.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 208 [2020-10-23 19:49:04,957 WARN L193 SmtUtils]: Spent 669.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 206 [2020-10-23 19:49:07,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:49:07,443 INFO L93 Difference]: Finished difference Result 1746 states and 2050 transitions. [2020-10-23 19:49:07,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-10-23 19:49:07,443 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 227 [2020-10-23 19:49:07,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:49:07,450 INFO L225 Difference]: With dead ends: 1746 [2020-10-23 19:49:07,450 INFO L226 Difference]: Without dead ends: 1120 [2020-10-23 19:49:07,454 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 951 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=737, Invalid=3169, Unknown=0, NotChecked=0, Total=3906 [2020-10-23 19:49:07,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2020-10-23 19:49:07,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 706. [2020-10-23 19:49:07,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-10-23 19:49:07,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 753 transitions. [2020-10-23 19:49:07,783 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 753 transitions. Word has length 227 [2020-10-23 19:49:07,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:49:07,784 INFO L481 AbstractCegarLoop]: Abstraction has 706 states and 753 transitions. [2020-10-23 19:49:07,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-23 19:49:07,784 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 753 transitions. [2020-10-23 19:49:07,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-10-23 19:49:07,789 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:49:07,790 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:49:07,790 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-23 19:49:07,790 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:49:07,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:49:07,791 INFO L82 PathProgramCache]: Analyzing trace with hash 184003802, now seen corresponding path program 1 times [2020-10-23 19:49:07,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:49:07,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1821533247] [2020-10-23 19:49:07,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:49:07,809 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.looppreprocessor.LoopPreprocessorFastUPR.preProcessLoop(LoopPreprocessorFastUPR.java:119) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.acceleratedInterpolationCore(AcceleratedInterpolation.java:266) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:341) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-10-23 19:49:07,814 INFO L168 Benchmark]: Toolchain (without parser) took 72755.32 ms. Allocated memory was 151.0 MB in the beginning and 810.5 MB in the end (delta: 659.6 MB). Free memory was 127.0 MB in the beginning and 680.2 MB in the end (delta: -553.3 MB). Peak memory consumption was 106.7 MB. Max. memory is 8.0 GB. [2020-10-23 19:49:07,814 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 123.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 19:49:07,815 INFO L168 Benchmark]: CACSL2BoogieTranslator took 631.77 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 105.1 MB in the end (delta: 21.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-23 19:49:07,815 INFO L168 Benchmark]: Boogie Preprocessor took 123.56 ms. Allocated memory is still 151.0 MB. Free memory was 105.1 MB in the beginning and 101.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-23 19:49:07,816 INFO L168 Benchmark]: RCFGBuilder took 1908.78 ms. Allocated memory was 151.0 MB in the beginning and 186.6 MB in the end (delta: 35.7 MB). Free memory was 101.2 MB in the beginning and 130.3 MB in the end (delta: -29.1 MB). Peak memory consumption was 35.4 MB. Max. memory is 8.0 GB. [2020-10-23 19:49:07,816 INFO L168 Benchmark]: TraceAbstraction took 70075.24 ms. Allocated memory was 186.6 MB in the beginning and 810.5 MB in the end (delta: 623.9 MB). Free memory was 129.8 MB in the beginning and 680.2 MB in the end (delta: -550.5 MB). Peak memory consumption was 73.4 MB. Max. memory is 8.0 GB. [2020-10-23 19:49:07,819 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 123.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 631.77 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 105.1 MB in the end (delta: 21.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 123.56 ms. Allocated memory is still 151.0 MB. Free memory was 105.1 MB in the beginning and 101.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1908.78 ms. Allocated memory was 151.0 MB in the beginning and 186.6 MB in the end (delta: 35.7 MB). Free memory was 101.2 MB in the beginning and 130.3 MB in the end (delta: -29.1 MB). Peak memory consumption was 35.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 70075.24 ms. Allocated memory was 186.6 MB in the beginning and 810.5 MB in the end (delta: 623.9 MB). Free memory was 129.8 MB in the beginning and 680.2 MB in the end (delta: -550.5 MB). Peak memory consumption was 73.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.looppreprocessor.LoopPreprocessorFastUPR.preProcessLoop(LoopPreprocessorFastUPR.java:119) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...